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Phobos orbits closer to Mars, with a semi-major axis of 9,377 km (5,827 mi) and an orbital period of 7.66 hours; while Deimos orbits farther with a semi-major axis of 23,460 km (14,580 mi) and an orbital period of 30.35 hours.
6 dni temu · This video clip shows a solar eclipse occurring at four times its actual speed. ... happened to drive over a rock and crack it open on May 30. ... discovered Mars’ two moons, Phobos and Deimos ...
Deimos was discovered on Aug. 11, 1877 by Asaph Hall. Hall named Mars' moons for the mythological sons of Ares, the Greek counterpart of the Roman god, Mars. Deimos, whose name means dread, is the brother of Phobos.
22 lut 2018 · Phobos and Deimos, the moons of Mars, are seen in this movie put together from 19 images taken by the Mars Odyssey orbiter’s Thermal Emission Imaging System, or THEMIS, camera. The images were taken in visible-wavelength light. THEMIS also recorded thermal-infrared imagery in the same scan.
28 mar 2024 · Phobos is on a 50-million-year collision course with Mars, drawing about 6 ft closer to the planet’s surface every 100 years. Deimos is about 1/7th the size of Phobos. It orbits much further out—14,291 miles from the surface—circling the planet in approximately 30 hours.
11 gru 2009 · Phobos, the larger of the two moons, orbits closer to the Red Planet, circling it every 7 hours and 39 minutes. It travels faster relative to Mars than the Moon relative to Earth. It was 11 800 km from Mars Express when the images were taken. Deimos was 26 200 km away.
8 gru 2017 · Hall discovered Deimos on Aug. 12 and Phobos on Aug. 18. The two tiny bodies had been hidden in the glare from the planet. Hall named the two satellites for the sons of the Greek god of war,...
